How does the disease work?

Season 1 teased us when the band of survivors visited the Centers for Disease Control and Prevention in Atlanta, but instead of answers we were treated to a giant explosion that killed five people. Will Season 4 actually give us some concrete science behind the disease: How it started? How it...

Season 1 teased us when the band of survivors visited the Centers for Disease Control and Prevention in Atlanta, but instead of answers we were treated to a giant explosion that killed five people. Will Season 4 actually give us some concrete science behind the disease: How it started? How it... (AMC)

Season 1 teased us when the band of survivors visited the Centers for Disease Control and Prevention in Atlanta, but instead of answers we were treated to a giant explosion that killed five people. Will Season 4 actually give us some concrete science behind the disease: How it started? How it...AMC